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Cheap flights from Ireland to Belfast from €38

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belfast departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ireland to Belfast

Recent return flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:10 - 10:00DUB  Dublin-BFS Belfast Intl
12h 50m1 stop Manchester
Multiple Airlines Logo
08:40 - 20:10BFS  Belfast Intl-DUB Dublin
11h 30m1 stop Manchester
€80Multiple Airlines
Mon, 21 Sep - Mon, 28 Sep
Multiple Airlines Logo
21:10 - 10:00DUB  Dublin-BFS Belfast Intl
12h 50m1 stop Manchester
Multiple Airlines Logo
12:45 - 23:25BFS  Belfast Intl-DUB Dublin
10h 40m1 stop Manchester
€81Multiple Airlines
Mon, 7 Sep - Thu, 17 Sep
Multiple Airlines Logo
21:20 - 07:05DUB  Dublin-BFS Belfast Intl
9h 45m1 stop Manchester
Multiple Airlines Logo
07:35 - 14:05BFS  Belfast Intl-DUB Dublin
6h 30m1 stop Manchester
€81Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
17:25 - 22:20ORK  Cork-BFS Belfast Intl
4h 55m1 stop Manchester
Multiple Airlines Logo
15:40 - 23:55BFS  Belfast Intl-ORK Cork
8h 15m1 stop Manchester
€81Multiple Airlines
Thu, 17 Sep - Wed, 30 Sep
Multiple Airlines Logo
21:10 - 10:00DUB  Dublin-BFS Belfast Intl
12h 50m1 stop Manchester
Multiple Airlines Logo
07:35 - 16:25BFS  Belfast Intl-DUB Dublin
8h 50m1 stop Manchester
€82Multiple Airlines
Mon, 21 Sep - Tue, 29 Sep
Multiple Airlines Logo
22:25 - 07:05ORK  Cork-BFS Belfast Intl
8h 40m1 stop Manchester
Multiple Airlines Logo
07:35 - 21:45BFS  Belfast Intl-ORK Cork
14h 10m1 stop Manchester
€82Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
21:10 - 10:00DUB  Dublin-BFS Belfast Intl
12h 50m1 stop Manchester
Multiple Airlines Logo
07:35 - 16:25BFS  Belfast Intl-DUB Dublin
8h 50m1 stop Manchester
€83Multiple Airlines
Mon, 21 Sep - Tue, 29 Sep
Multiple Airlines Logo
17:25 - 22:20ORK  Cork-BFS Belfast Intl
4h 55m1 stop Manchester
Multiple Airlines Logo
15:40 - 23:55BFS  Belfast Intl-ORK Cork
8h 15m1 stop Manchester
€83Multiple Airlines
Thu, 17 Sep - Wed, 23 Sep
Multiple Airlines Logo
08:50 - 15:15SNN  Shannon-BFS Belfast Intl
6h 25m1 stop Manchester
Multiple Airlines Logo
15:40 - 23:35BFS  Belfast Intl-SNN Shannon
7h 55m1 stop Manchester
€84Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
06:30 - 15:15DUB  Dublin-BFS Belfast Intl
8h 45m1 stop Manchester
Multiple Airlines Logo
15:40 - 20:30BFS  Belfast Intl-DUB Dublin
4h 50m1 stop Manchester
€85Multiple Airlines
Wed, 2 Sep - Wed, 9 Sep

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Aer Lingus flights from Ireland to Belfast

Our best Aer Lingus deals on Ireland to Belfast flight tickets
Aer Lingus
21 Sept
DUB06:30Dublin
7h 20m
1 stop
BHD13:50Belfast City
30 Sept
BHD11:05Belfast City
7h 30m
1 stop
DUB18:35Dublin
€237
Aer Lingus
28 Sept
DUB09:55Dublin
3h 55m
1 stop
BHD13:50Belfast City
4 Oct
BHD11:05Belfast City
4h 25m
1 stop
DUB15:30Dublin
€256
Aer Lingus
28 Sept
DUB10:30Dublin
6h 05m
1 stop
BHD16:35Belfast City
4 Oct
BHD14:05Belfast City
5h 55m
1 stop
DUB20:00Dublin
€282

British Airways flights from Ireland to Belfast

Our best British Airways deals on Ireland to Belfast flight tickets
British Airways
28 Sept
DUB20:30Dublin
11h 05m
1 stop
BHD07:35Belfast City
4 Oct
BHD20:10Belfast City
13h 30m
1 stop
DUB09:40Dublin
€192
British Airways
28 Sept
DUB20:30Dublin
11h 05m
1 stop
BHD07:35Belfast City
4 Oct
BHD20:10Belfast City
13h 30m
1 stop
DUB09:40Dublin
€193
British Airways
29 Sept
DUB20:25Dublin
12h 35m
1 stop
BHD09:00Belfast City
3 Oct
BHD19:05Belfast City
14h 35m
1 stop
DUB09:40Dublin
€209

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 11 August 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Mon 21/9

21:10-10:00

1 stop12h 50m

Belfast Intl

Mon 28/9

08:40-20:10

1 stop11h 30m

€80

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Mon 7/9

21:10-10:00

1 stop12h 50m

Belfast Intl

Thu 17/9

12:45-23:25

1 stop10h 40m

€81

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Tue 8/9

21:20-07:05

1 stop9h 45m

Belfast Intl

Tue 15/9

07:35-14:05

1 stop6h 30m

€81
Fastest return journey

CorkBelfast

ORK Cork - BFS Belfast Intl

ORKBFS

Cork

Thu 17/9

17:25-22:20

1 stop4h 55m

Belfast Intl

Wed 30/9

15:40-23:55

1 stop8h 15m

€81

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Mon 21/9

21:10-10:00

1 stop12h 50m

Belfast Intl

Tue 29/9

07:35-16:25

1 stop8h 50m

€82

CorkBelfast

ORK Cork - BFS Belfast Intl

ORKBFS

Cork

Tue 8/9

22:25-07:05

1 stop8h 40m

Belfast Intl

Tue 15/9

07:35-21:45

1 stop14h 10m

€82

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Mon 21/9

21:10-10:00

1 stop12h 50m

Belfast Intl

Tue 29/9

07:35-16:25

1 stop8h 50m

€83

CorkBelfast

ORK Cork - BFS Belfast Intl

ORKBFS

Cork

Thu 17/9

17:25-22:20

1 stop4h 55m

Belfast Intl

Wed 23/9

15:40-23:55

1 stop8h 15m

€83

ShannonBelfast

SNN Shannon - BFS Belfast Intl

SNNBFS

Shannon

Wed 16/9

08:50-15:15

1 stop6h 25m

Belfast Intl

Wed 23/9

15:40-23:35

1 stop7h 55m

€84

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Wed 2/9

06:30-15:15

1 stop8h 45m

Belfast Intl

Wed 9/9

15:40-20:30

1 stop4h 50m

€85

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ireland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ireland to Belfast?

Ryanair is the most popular carrier operating from Ireland to Belfast

Cheap Ireland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belfast

Fastest flight time

3h 35m

Direct flights

None
The fastest flight from Ireland to Belfast takes 3h 35m
There are no direct flights from Ireland to Belfast. There are no popular flight routes from Ireland to Belfast.
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Frequently asked questions about flying from Ireland to Belfast

  • When did momondo last update prices for flights from Ireland to Belfast?

    Prices for flights from Ireland to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Ireland to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Belfast . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Belfast?

Once all potential Ireland to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 19.6 km from Belfast
Belfast Intl Airport
Belfast City Airport